Advertising networks are fragmenting into specialized verticals like travel ad networks, women’s ad networks and gay ad networks, according to Frank Addante, serial entrepreneur and CEO of advertising technology company The Rubicon Project. The fragmentation is mimicking the way television stations split off into cable channels, he says.

Addante discussed the benefits and challenges of this trend when I interviewed him at the TechCrunch50 conference last week.

The Rubicon Project is a portfolio company of Clearstone Venture Partners.

Kelsey Blodget, Associate Producer